Best How To :

The string bound to "s" will be deallocated once the function ends ("s" goes out of scope), so you cannot return a reference to its contents outside the function. The best way is to return the string itself:

So to encrypt an aspect of the file you may want to gather it's bytes in an array*, That can either be done using the class Files from java or a stream to do it manually. For now lets say you got the byte array obtained using Files.readAllBytes(Path file); So...

This is the start of what you want. Because this is an assignment I have left you with some reading, and the remainder of the assignment. I have also translated much of the code to read in Portuguese. #include <iostream> #include <fstream> // seu códe // Faça isso para ler...

dict() does not parse Python dictionary literal syntax; it won't take a string and interpret its contents. It can only take another dictionary or a sequence of key-value pairs, your line doesn't match those criteria. You'll need to use the ast.literal_eval() function instead here: from ast import literal_eval if line.startswith(self.kind):...

Speaking as someone who's had to do exactly what you're talking about a number of time, rr got it basically right, but I would change the emphasis a little. For file versioning, text is basically the winner. Since you're using an hdf5 library, I assume both serializing and parsing are...

First of all, the code you wrote here is not working, because when you open an outputStream to the exact file you try read from, it will empty the source file and the statement in.readLine() always returns null. So if this is your real code maybe this is the problem....

The issue is in the code - curr_file = open('myfile',w) curr_file.write('hello world') curr_file.close() The second argument should be a string, which indicates the mode in which the file should be openned, you should use a which indicates append . curr_file = open('myfile','a') curr_file.write('hello world') curr_file.close() w mode indicates write ,...

I would recommend you create the CSV at server side PHP program and set Content-Type as "application/vnd.ms-excel" (or) "text/csv" and set "Content-Disposition: attachment; [yourfilename] " Refer this Create a CSV File for a user in PHP Refer this Force Download CSV File Simply put hyperlink as <a class="areaSummaryExport" href="admin_ajax.php" value="1">...</a>...

Since the next thing we plan to do is create something at that location, and since we want to treat it as an error if something already exists there, then let's not bother checking. Just attempt the create and exit with an error if it fails. The create step uses...

You could split the text and have a list of lists, where each sub list is a row, then pluck whatever you need from the list using rows[row - 1][column - 1]. f = open('test.txt', 'r') lines = f.readlines() f.close() rows = [] for line in lines: rows.append(line.split(' ')) print...

That looks like a compiler bug. The array grid is assumed shape, not assumed size. Assumed shape arrays are permitted in namelist as of F2003, assumed size arrays remain prohibited (at runtime the size of an assumed size array is not necessarily known, so operations that require knowledge of the...

Example code: #!/bin/bash declare -a textarr numarr while read -r text num;do textarr+=("$text") numarr+=("$num") done <file echo ${textarr[1]} ${numarr[1]} #will print Toy 85 data are stored into two array variables: textarr numarr. You can access each one of them using index ${textarr[$index]} or all of them at once with ${textarr[@]}...

.gitignore is just like any other file under version control, so yes, you can delete it. However, keep in mind that it probably has entries in it that should be kept, so instead of deleting it, I would just modify it so that your jar files are no longer ignored.

You're looking for sys.__stdout__: It can also be used to restore the actual files to known working file objects in case they have been overwritten with a broken object. However, the preferred way to do this is to explicitly save the previous stream before replacing it, and restore the saved...

You need to change your $target_file variable to the name you want, since this is what gets passed into move_uploaded_file(). I don't see anywhere in your code where you actually set this variable to their username (right now it's still using the name they selected when they uploaded it). Without...

/*Everything looks find in your code. in my machine it is working fine . I have only added a if condition to print the contents same as the file thats it .. */ #include<stdio.h> int main(void) { FILE *fp; int c; fp = fopen("rabi.txt","r"); if(fp == NULL) { perror("Error in...

You have to call DirectoryStream<Path> files = Files.newDirectoryStream(dir); each time you iterate over the files. Pls check this question... java.lang.IllegalStateException: Iterator already obtained...

The problem is the way you are treating the result of strtok: you are setting its value right into the node, instead of copying it. Make a copy of name when adding a node: void push(node ** head, int uid ,char* uname) { node * new_node; new_node = malloc(sizeof(node)); new_node->uid...

By conversion to string, you hide the error. Always try repr(value) instead of str(value) for debugging purposes. You should also know, that it is better to compare integers instead of strings -- e.g. " 1" != "1". Edit: From your output, it is clear that you have an extra '\n'...

I see you have called the bindParameters() method after calling execute(). It should be the other way round. i.e. $stmt->bind_param('ssis',$complete,$file_name,$fileSize,$myUrl); $stmt->execute(); ......

With this AJAX form submission approach, you will not be able to upload file using ajax. If you don't like using a third-party plugin like dropzone.js or Jquery file upload, you can use XMLHttpRequest. An example below: $('#newcatform').on('submit', function(ev){ ev.preventDefault(); var forms = document.querySelector('form#newcatform'); var request = new XMLHttpRequest(); var...

You simply had some typo in your FileMover run method: Path destination = origin.resolve(origin.getFileName().toString().replace(".in", ".out")); The destination will be like C:\temp\file_0.in\file_0.out this won't work, because it is a file and not a directory :-) Replace it something like that: String now = origin.toString().replace(".in", ".out"); Path destination = Paths.get(now); ...

There is one new line, which is to be expected. The echo command prints all its arguments on a single line separated by spaces, which is the output you see. You need to execute the result of: echo "$(ls %s)" to preserve the newlines in the ls output. See Capturing...

The code 302 refers to a relocation. The correct url will be transmitted in the location header. Your browser then fetches the file form there. See https://en.wikipedia.org/wiki/HTTP_302 Try https://repo1.maven.org/maven2/com/cedarsoftware/json-io/4.0.0/json-io-4.0.0.jar For FileUtils see How to use FileUtils IO correctly?...

Is it possible to use a variable in the AssignFile command? Yes. The second parameter of AssignFile has type string. The expression cFileDir + '\' + sFile has type string. FWIW, AssignFile is known as a function rather than a command. Getting on top of terminology like this will...

you have to create the missing directories yourself If you don't want to use a 3rd party library you can use File.mkdirs() on the parent directory of the output file File outputFile = new File(nameAndPath); outputFile.getParentFile().mkdirs(); ImageIO.write(image, "png", outputFile); Warning that getParentFile() may return null if the output file is...

While I don't know of a method to make File.exists() perform faster (likely there is no way as it's more of an OS issue), you can at least mitigate the issue by using asynchronous operations instead - thus avoiding locking the UI. You can skip the exists operation, and just...

That is the proper way of deleting it. You can check the Migration example in the RealmExample project that come with the SDK and see that that's exactly how they do it, so I assume the recommended way. let defaultPath = Realm.defaultPath NSFileManager.defaultManager().removeItemAtPath(defaultPath, error: nil) ...

Remove the if not len(key) != len(aDict) and the break. What you probably wanted to do is stopping the loop after iterating all the keys. However key is one of 'OG_1', 'OG_2', 'OG_XX', it's not a counter or something like that. Replace open("key", "w") with open(key + ".txt", "w")....

use getline and stringstream while(getline(file,str)){ stringstream stream(str); double something; while(stream>>something){ //Push it into inner vector<double> } //push vector<double> into vector<vector<double> > here } You can work out the inner details yourself....

Interesting question. I'm not aware of the size on disk value being a property of any scriptable object. You could calculate it by getting filesize modulo bytes-per-cluster, subtracting that modulo from the file size, then adding the cluster size. (Edit: or use Aacini's more efficient calculation, which I'm still trying...

The string bound to "s" will be deallocated once the function ends ("s" goes out of scope), so you cannot return a reference to its contents outside the function. The best way is to return the string itself: fn read_shader_code(string_path: &str) -> String { let path = Path::new(string_path); let display...

I believe the problem is with Dir.foreach, not CSV.open. You need to supply a directory to foreach as an argument. That's why you are getting the missing argument error. Try: Dir.foreach('/path/to_my/directory') do |current_file| I think the open that is referenced in the error message is when Dir is trying to...

Extract from http://www.libpng.org/pub/png/spec/1.2/PNG-Rationale.html#R.PNG-file-signature The first two bytes distinguish PNG files on systems that expect the first two bytes to identify the file type uniquely. The first byte is chosen as a non-ASCII value to reduce the probability that a text file may be misrecognized as a PNG file; also, it...

I don't know if you can write to a specific line in a file, but if you need to you can write your lines to a List then write the list to a file 'Declare your list Dim lines As New List(Of String) For Each lineToWrite In YourLines If toInsert...

Mentioned solution with fseek is good. However, it can be very slow for large matrices (as disks don't like random access, especially very far away). To speed up things, you should use blocking. I'll show a basic concept, and can explain it further if you need. First, you split your...